Resolved the issue with the NTX2 not transmitting properly, seems I’ve got the pins wrong in the code, the hardware is fine. However the part I chose for the onboard temp sensor was wrong so currently no on board temp sensor, though the external one works fine:
I then powered it up and popped it in my pocket and took the dog for his evening walk, the uBLOX6 is extremely accurate, its fairly clear exactly which side of the road I was on (click for larger) :
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